INSPERITY, INC. — Director's Dealing 2010

Nov 30, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-11-29

Reporting Person: ARIZPE ARTHUR A (Exec VP Client Services & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-29	Common Stock	M	5515	$18.00	Acquired	131309.911	Direct
2010-11-29	Common Stock	S	5515	$28.77	Disposed	125794.911	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-29	Employee Stock Option (right to buy)	$18.00	M	5515	Disposed	2011-03-15	Common Stock (5515)	Direct

Footnotes

F1: Weighted average sales price. Actual prices ranged from $28.75 to $28.88.

F2: Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Administaff, Inc. or its stockholders.

F3: The options became exercisable in three equal annual installments beginning March 15, 2002.